Paint or varnish remover.



'U sITEI) STATES PATENT OFFICE. a

, m i F LRQHEMONT, NEW YORK, ASSIGNOB TO CHADELDID cnsmicer.

"COMPANY, .01 NEW YORK, is. Y'., A coarorm'rron or WEST VIRGINIA.

PAINT 0R VAR-NISH BEMOVER.

No Drawing.

I To an may-concern:

' following is a specification.

This invention relates to paint or varnish removers and relates especlally to removers of an emulsified. character in which the emulsifier has an acid character and is sub stantially immiscible with the other solvent material employed: For this purpose casein can be dissolved in acid aqueous solutions such as dilute hydrochloric acid or in many other acids. Other gelatinous or' proteid bodies may be used to give the desired viscosity to the emulsiiying medium, glue, isinglass, starch, Irish moss and other bodies being desirable and also other material, such as waste sulfite liquor is desirable in this connection, the liquor being used when concentrated without neutralization to a consistency of about 30 Baum; or if this calcium lignosulfonate has been neutralized previous to or during its concentration, it may be given an acid character b the addition of a suitable amount oi aci such as acetic acid up to the extent of five to ten per cent. of the glacial material When the emulsifier, preferably of the aqueous acid character indicated, has been prepared, the finish solvents may be thoroughly incorporated therewith by agitation in a suitable emulsifying apparatus, the alcoholic and other finish solvent ingredients in the remover being preferably such as are substantially, thatis, to a large extent at least, immiscible with the aqueous portion of the emulsifier so that they "are kept in such condition and concentration as to operate properly on the finish to which the remover is applied. The crude or quasi allyl alcohol obtained in alcohol production and sold under the name of allyl alcohol, is largely immiscible or insoluble in water, as is also amyl alcohol in its commercial form fusel oil as well as the wool tar oils which have a generally alcoholic character and similar solvent action. Various derivatives of these solvents may alsobe used, such, for instance, as amyl acetate. Of course, other loosening solvent material, that is, solvent material of a generally alcoholic character or action in Specification or Letters Patent.

Patented July 29, 1913.

Application filed October '12, 1007. Serial No. 397,075.

5 removers, maybe used in the remover when hols, for instance in their cheaper commercial forms, such as denatured alcohol and also other ketonic loosening finish solvents, such as methyl acetone, described in Ellis -Patent' No. 811,044, acetone and other ketones, acetone oil, light tar oil, resin oil, and i so forth, and various-derivatives thereof, in-

cluding wood 'alcoholesters, sold under the "name of esters by wood alcohol manufacturers. Suitable penetrating solvents, that is, finish solvent material of a generally ben- ;zol1c character or actlon 1n removers may also be used, including benzol, tol-uol, Xylol, cumene, as well as the petroleum products,

; benzin, gasolene, etc., and also carbon-bisulfid, carbon tetrachlorid and other chlorinated compounds.

A typical illustrativeremover of this character may comprise five ounces of casein dissolved in one gallon of a one-tenth percent. aqueous solution of hydrochloric acid and emulsified with an equal volume of finish solvent material, consisting of equal parts of benzol and quasi allyl alcohol formed in wood alcohol production. Another illustrative remover may comprise one gallon of -sulfite liquor of 30 B. acidified with one quart of acetic acid and emulsified with finish solvent material comprising benzol two gallons, fusel oil one gallon, amyl acetate one-half gallon andte'rpineol one-half gallon. Another desirable illustrative remover may comprise waste sulfite liquor containing free sulfurous acid one gallon, emulsified with composite finish solvent material composed of benzol or benzin two gallons andwood tar solvent oils boiling between 100 and 200 C. two gallons. Another illustrative remover may comprise casein 8 ounces together with four ounces of gelatin, if desired, dissolved in .one gallon of a one-tenth per cent. hot aqueous solution of hydrochloric acid and emulsified with an equal volume of finish solvent material consisting of equal parts of benzol and wood tar solvent oils boiling between 100 and 200 C.

Having described this invent-ion in connection with a number of illustrative ingredients and formulas, to the details of which disclosure in this case containing subject-matter taken from Ellis application, 375,015, filed May 22, 1907, the invention is not, of course, to be limited, what is claimed as new and what is desired to be secured by Letters Patent is set forth in the appended claims.

I claim- 1. The finish remover comprising an emulsifier consisting of five ounces of casein dis solved in one gallon of th per cent. aqueous solution of hydrochloric acid emulsified with an equal volume of finish solvent material consisting of equal parts of benzol and quasi allyl alcohol.

2. The finish remover comprising approximately an emulsifier consisting of casein dissolved in a weak aqueous solution of hydrochloric acid and combined with substantially immiscible finish solvent material, including penetrating solvent and quasi allyl alcohol.

3. The finish remover comprisin an emulsifier containing casein dissolve in weak aqueous solution of mineral acid combined with substantiallyimmiscible finish solvent material containing loosening finish solvent material comprising an alcohol.

4. The finish remover'comprising an emulsifier comprising casein dissolved in weak aqueous solution of mineral acid combined with finish solvent material comprising penetrating solvent material.

5. The finish remover comprising anemulsifier comprising proteid material dissolved in'a weak solution of a mineral acid combined with finish solvent material compris- {ing loosening solvent material.

combined with substantially immiscible finish solvent material comprising alcoholic material.

OARLETON ELLIS. Witnesses:

HARRY L. DUNCAN, Jnssre B. KAY. 

